baber/WOPTO huggingface dataset:
Patent GB-1094380-A (GB)
Title: Electric circuit breaker with thermal tripping means
IPC: H01H9/34
Filed: 1965-06-01
Abstract: 1,094,380. Automatic circuit breakers. SQUARE D CO. June 1, 1965 [June 16, 1964], No. 18703/67. Divided out of 1,094,377. Heading H2B. An automatic circuit breaker has a two-part moulded insulating casing; two terminals 30, 32 mounted at opposite ends of the casing, one 30 being connected to a fixed contact 42 by a strap 46; a movable contact arm 43 pivotally mounted in the casing at 83 and extending longitudinally of the casing; a releasably latchable lever (96) (Fig. 4, not shown); a rotatable trip bar 39 located between the pivot 83 and terminal 32 and rotatable to release to lever (96) and so to open the contacts 42, 44; a conducting strap 126 connected to terminal 32 and extending longitudinally of the casing to a point beyond the pivot 83 where it is attached to a current responsive bi-metal 128 the other end of which is free to engage and rotate the trip bar 39 upon sustained overload and a flexible conductor 130 connecting the free end of the bi-metal to the contact arm 43. The position of bi-metal 128 and therefore the tripping current is adjustable by a screw 136. The circuit breaker is also provided with an electromagnetic tripping device for short-circuit protection (see Specification 1,094,378), an overcentre snap-acting toggle linkage coupling the contact arm 43 to a handle 24 (see Specification 1,094,377) and an arc chute and venting arrangement (see Specification 1,094,379). As described the circuit breaker is for three-phase working.
Patent GB-1128419-A (GB)
Title: Calendar clock mechanism
IPC: G04C17/00
Filed: 1967-04-24
Abstract: 1,128,419. Calendar clocks. LAU, CHUN LEUNG and LAU, CHI LEUNG. April 24, 1967, No.18771/67. Heading G3T. A calendar clock mechanism comprises a day wheel steppable through thirty-one successive positions by means actuated by a solenoid once per day, a month wheel steppable to successive positions in response to the completion of each series of positions of the day wheel, said wheels each comprising coaxial zones associated with months having other than thirty-one days, and contact making means whereby when the day and months wheels assume positions corresponding to a non-existent date at the end of a month less than thirty-one days, a circuit to the solenoid or to a further solenoid is completed to step the day wheel to its next successive position. The day wheel A is divided areally into seven zones A 1  to A 7  (zones A 1  to A 4  being shown exploded in Fig. 1A) and is rotated by a spring loaded pawl 122 actuated by a solenoid P energized once daily by a clock controlled switch M 2 . Thirty-one teeth are provided around the periphery of the zone A 3 . Zone A 2  carries teeth at locations 1, 10, 20, 30, Zone A 4  carries a tooth at location 31, zone A 5 teeth at locations 30 and 31, and zone A 6  teeth at locations 29, 30, and 31. The month wheel B is peripherally divided into 48 tooth carrying locations each associated with one month in a four year cycle. These are provided on a zone B 4 , whilst zone B 1  carries teeth at locations indicating April, June, September and November in all four years, zone B 2  carries a tooth indicating February in a leap year, and zone B 3  carries teeth indicating February in the other three years. Indicator drums E, F, G, H show the days of the week, the tens digit of the day of the month, the units digit of the day of the month, and the month, respectively. These drums are driven by solenoid devices actuated by the closure of contacts effected by the teeth on the wheels A, B. The contacts Y and U, Z and V, and N and X are respectively connected in series between lines 142, 143, so that whenever the wheels are in positions corresponding to dates which do not exist, e.g. June 31st, the solenoid P will be energized to rotate the wheel A until positions of the wheels A, B corresponding to a real date are achieved.
Patent GB-259332-A (GB)
Title: Improved method of mounting ornamental tiles and the like
IPC: E04F13/10
Filed: 1925-07-24
Abstract: 259,332. Ledder, J. July 24, 1925. Fenders; curbs.-A tiled fender or curb, Fig. 3, consists of a solid wooden base and an upper portion formed with an undercut channel 2 in which the tiles are inserted at one end, the gap being closed by a detachable boss secured to the base by dowels. The channel may be formed in a single upper portion, or between two side pieces as shown in Fig. 4, and the sides may extend down to the bottom edge.
Patent GB-187023-A (GB)
Title: Method of reading for the blind
IPC: G09B21/00
Filed: 1921-07-12
Abstract: 187,023. Brodeur, M. July 12, 1921. Blind persons, communicating with.-A record strip perforated in dot-and-dash code is provided for transmitting reading matter by sounds in code to the blind, the strip being used to control a telegraph sounder or like instrument. The perforations are arranged in lines lengthways of the strips, with alternate lines reading in reverse directions, so that a roll can be read continuously by traversing it between two spools, with reversals at the end of each line. The travers ir,g-mechanism may comprise a pair of spools 7 driven from an electromotor 19 through clutch mechanism 12, 13 having an electromagnetic control 14, the circuit of which is normally broken at two pairs of upper and lower contacts 26 allowed to engage alternately by corresponding marginal slots 28 in the record-strip to effect reversal.
Patent GB-331088-A (GB)
Title: Improvements in or relating to electrical transformers
IPC: H01F38/24
Filed: 1929-06-19
Abstract: 331,088. Koch & Sterzel Akt.-Ges. Dec. 15, 1928, [Convention date]. Transformers.-A transformer, more particularly an instrument transformer, is arranged within an insulating casing suspended at one point only so as to constitute a suspension insulator link. The casing 11, Figs. 1 and 5, has a cemented cover 13, or a cover secured by a fastening device 15, and contains the transformer and an insulating liquid. The transformer may be secured to the cover 13 by brackets 16 on which are held the pressure-plates 17 of the core. These plates are circular, as shown in Fig. 6, and have rounded edges; they act as screens and ensure good field distribution. In a modified form of construction the transformer rests on lugs 20 on the casing. Ribs 26 are provided round the casing. A bolt 23 in the lower opening of the casing carries the clip 24 to support the high-tension conductor 25. A suspension bolt 27 is secured to the cover, and is electrically connected to the high-tension main 25 through the cover 13, the brackets 16 and the high-tension winding 19. The secondary winding 18 is connected to metal cylinders 31, 32 in the bolt 33 and these connections lead to a voltmeter, or to a relay, or to the transformer system in the insulating casing 36 above. In a modification, the transformer insulator link is suspended from the high-tension line wire and the lower end of the high-tension winding is earthed. A number of such links may be used as shown in Fig. 14. The line wire 73 is strained to its support 75 by the insulator straining-chain 74, and passes into the switch-house through condenser leading-in tubes 77. A transformer suspension-chain I, II, III is connected between the point of attachment 78 and the line 73. Similar arrangements may also be used where the line is suspended from poles. Current transformers may be housed in the suspension insulator links, the primary current winding being wound round a tubular transverse aperture in the insulator while the secondary winding is wound on a core in the tubular aperture. A current transformer 55 of this type and a voltage transformer 56 may be included in one insulator link as shown in Fig. 8. The insulator casing is substantially funnel-shaped and may consist of two parts 57, 58 as shown in the lefthand side of the Figure, or may be made as one unit only as shown in the right-hand side of the Figure. The ends of the secondary windings are carired through the hollow suspension bolt 63. The connection terminals 70, 71 for the hightension lines 51, 52 are of spherical shape and contain a bridging resistance 72. The insulator may be filled with pure or graphitized quartz sand.
Patent GB-956089-A (GB)
Title: Improvements relating to textile cord
Inventor: CROSSLEY HENRY MORTON
IPC: F16L15/04
Filed: 1962-05-17
Abstract: A cord comprises a textile centre strand e.g. a sliver, yarn, twine, rope or cord of man-made, vegetable e.g. hemp, or mineral fibres, around which is wound extruded separate filaments or a continuous tube of unsintered polytetrafluoroethylene.  The cord may be used for lubricating and scaling threaded joints, or woven or braided to form jointing and packing material.
Patent GB-275015-A (GB)
Title: Improvements in or relating to the artificial drying of crops
IPC: F26B21/00
Filed: 1926-07-30
Abstract: 275,015. Owen, B. J. July 30, 1926. Addition to 235,273 and 248,935. Crops, preserving.- The excavation a below the surface of the ground or floor in the arrangement for drying crops by heated air described in the parent Specification, as modified by the invention described in Specification 248,935 in which heated air passes from a duct having an enlarged delivery orifice into a distributing chamber formed within the stack of material to be heated, is so formed that its walls a<1>, a<2>, a<3> extend vertically upwards. The bottom of the wall a<1> remote from the duct c is rounded or curved to a greater degree than at the bottom of the other walls a<1>, a<2>.
Patent GB-462288-A (GB)
Title: Improvements in and relating to two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1935-07-03
Abstract: 462,288. Two-stroke-cycle engines. KADENACY, M. July 3, 1935, No. 19059. [Classes 7 (ii) and 7 (vi)] In engines in which the depression created in the combustion chamber by the mass exit of the exhaust gases is used for inducing fresh charge, the exhaust valve or port 6 is closed before the return flow of the burnt gases commences, but not until the incoming charge fills the cylinder and is entering the exhaust duct. As shown, the rotary-valve 6 closes the exhaust duct 4 at about the bottom dead-centre position of the piston. A supplementary charge, or supercharge, may also be supplied. Specifications 431,856, 431,857, 447,537, 448,526, and 451,928 are referred to.
Patent GB-715624-A (GB)
Title: Automatic timing device
Inventor: ARAM ERIC HAROLD GEORGE
IPC: H01H43/06
Filed: 1951-08-13
Abstract: 715,624. Valves controlled by auxiliary valves. MANLOVE, ALLIOTT & CO., Ltd. Aug. 13, 1952 [Aug. 13, 1951], No. 19066/51. Class 135. [Also in Group XXXVII] A timing device comprises a number of cells of adjustable capacity, means for feeding balls to the cells at a uniform rate so that the cells are filled in sequence, and apparatus operated at intervals of time dependent upon the capacity of each cell and the feed rate. The controlled apparatus may be valves controlling a washing machine. The balls 12 are fed by a constantlyreciprocating plunger (Fig. 2, not shown), through a duct 20 to a passageway 22 having holes 32 leading into the cells 34. Each of the latter contains an adjustable member 40 the position of which determines the capacity of the cell. Opposite each opening 32 is a plunger, such as 24, having a head 24a which is raised when the first ball moves beneath it. Each cell is filled in turn and when full the next ball passes along the passageway 22 and lifts the next plunger 24, and so on, the upward movement of the plungers operating the valves. One form of pneumatic relay, Fig. 5, comprises a number of cylinders 60, 62, 64, 66, 68 each containing a plunger 60a, 62a, &c. The device is started by manual depression of plunger 68a to connect an air source 70 to a line 72 and to start the feed plunger. When plunger 24 is raised, the lefthand valve 76 is opened and plunger 60a is pushed down to connect a pipe 60c to a pipe 60d leading to e.g. control valve. When the next plunger 24 is raised, the next valve 76 is opened and plunger 62a is operated; at the same time air through pipe 60e restores plunger 60a. When plunger 68a is restored, by air from line 72, it cuts off the supply from source 70 and stops the feed plunger. The feed rate may be varied.
Patent GB-1322299-A (GB)
Title: Ionization smoke detector
IPC: G08B17/113
Filed: 1972-04-25
Abstract: 1322299 lonization detectors NITTAN CO Ltd 25 April 1972 [13 May 1971] 19142/72 Heading H1D A radioactive source 23 in an open ionization chamber 20 of a smoke detector is supported by a member 33 of thermally insulating material and is thus thermally insulated from other parts of the detector. The object is to prevent false alarms owing to dew forming on the source 23 when the detector is mounted in thin-roofed buildings such as aircraft hangers. The detector includes an inner electrode 11  and an intermediate electrode 30 supported by an insulating base 32 to form a sealed reference ionization chamber 10 containing dried air and a radioactive source 13 fixed directly to electrode 30. The measuring chamber 20 is formed between electrode 30 and an outer electrode 22 having a plurality of holes 31. The member 33 may be made of synthetic resin or ceramic. The radioactive source 23 may be coated with a film 34 of similar thermally insulating material having a central opening in which the radioactive material is exposed.
Patent GB-926639-A (GB)
Title: Improvements relating to the treatment of cellulosic fabrics
Inventor: FLOWER ALBERT GEORGE
IPC: D06L4/15
Filed: 1960-05-31
Abstract: Cellulosic fabrics are bleached by applying to the fabric, by a pad technique, an aqueous peracetic acid solution containing a chelating or sequestering agent which is stable to peracetic acid, allowing the padded fabric to stand, preferably 12 to 24 hours, and then washing the fabric.  Both padding and washing are carried out at ambient temperatures.  The preferred chelating or sequestering agent is the sodium salt of diethylene triamine penta-acetic acid in a concentration of, e.g. 0,05 g./litre. The concentration of the peracetic acid should be at least 0,5 g./l, preferably 2-4 g./l.  The bleaching bath may also contain, e.g. wetting agents, sodium hexametaphosphate, and also sodium chlorite or hypochlorite.  The term "cellulosic" includes natural cellulose, e.g. cotton, regenerated forms, e.g. viscose rayon, and cellulose derivatives such as acetates.
Patent GB-1070930-A (GB)
Title: Fluidisable catalysts and method for their preparation
IPC: C10G11/05
Filed: 1964-05-08
Abstract: A catalyst suitable for reaction in a fluidized bed comprises spray formed microspheres containing a crystalline aluminosilicate with a pore size in the range 6-13 <\>rA of which 75% of the cations of the aluminosilicate are other than alkali metal cations.  The activity of the aluminosilicate may be modified by suspending or distributing the aluminosilicate in a porous matrix of relatively inactive material within the microspheres, and/or the catalyst particles may be mixed with further particles of, e.g., sand, silica, metal oxides and clays, or the aluminosilicate may be steam-treated or calcined (500-1000 DEG  C.), or the catalyst particles may be treated with calcium acetate acetic acid solution or calcium hydroxide.  The porous matrix may comprise gels or co-gels of silica, zirconia, alumina, magnesia, clays and refractory materials. The catalyst particles may also comprise fines of weight mean particle diameter < 40 m  of silica-alumina, clay or metal salt. The aluminosilicate may be zeolite X or Y, possibly synthetic faujasite, and be ion-exchanged with Li, Cu, Ag, Be, Mg, Ca, Sr, Ba, Zn, Cd, Al, rare earths, Ti, Zr, Hf, Sn, Pb, V, Cr, Mn, Fe, Co or Ni.  The spray forming may be effected by spraying a slurry containing the aluminosilicate in concurrent, countercurrent, semi-countercurrent or cycloflow with a drying gas.  The final particle size may be C 20-200 m . Non-shrinking solids may be incorporated into the slurry to preserve crystallinity.ALSO:A catalyst suitable for reaction in a fluidised bed comprises spray formed miscrospheres containing a crystalline aluminosilicate with a pore size in the range 6-13  of which 75% of the cations of the aluminosilicate are other than alkali metal cations.  The activity of the aluminosilicate may be modified by suspending or distributing the aluminosilicate in a porous matrix of relatively inactive material ( <FORM:1070930/B1-B2/1> ) within the microspheres, and/or the catalyst particles may be mixed with further particles of e.g. sand, silica, metal oxides and clays, or the aluminosilicate may be steam treated or calcined (500-1600 DEG C), or the catalyst particles may be treated with calcium acetate-acetic acid solution or calcium hydroxide.  The porous matrix may comprise gels or -CO-gels of silica, zirconia, alumina, magnesia, clays and refractory materials.  The catalyst particles may also comprise fines of weight mean particle diameter <40m  of silica-alumina, clay or metal salt.  The aluminosilicate may be zeolite X or Y, possibly synthetic fungasite, and be ion exchanged with Li, Cu, Ay, Be, Mg, Ca, Sr, Ba, Zn, Cd, Al, rare earths, Ti, Zr, Hf, Sn, Pb, V, Cr, Mn, Fe, Co, or Ni.  The spray forming may be effected by spraying a slurry containing the aluminosilicates in concurrent, countercurrent, semi-countercurrent or cycloflow with a drying gas.  The final particle size may be 20-200m .  Non shrinking solids may be incorporated into the slurry to preserve crystallinity.
Patent GB-857369-A (GB)
Title: Improvements in or relating to moulds and mandrels for continuously casting metallicmaterials
IPC: B22D11/00
Filed: 1959-06-05
Abstract: 857,369. Continuous-casting machines. WIELAND-WERKE A.G. June 5, 1959 [June 12, 1958], No. 19321/59. Drawings to Specification. Class 83 (1). A continuous-casting mould is made of graphite or graphite-containing material, which is backed with a metallic coating, e.g. copper, which is integral with or fixedly attached thereto. The coating may be applied by spraying, dipping or galvanic-precipitation. A mandrel for use in the continuous-casting of tubes may be similarly constructed.
Patent GB-726947-A (GB)
Title: An improved multivibrator
Inventor: BAXANDALL PETER JAMES
IPC: H03K3/04
Filed: 1952-07-30
Abstract: 726,947. Pulse generating circuits. MINISTER OF SUPPLY. July 31, 1953 [July 30, 1952], No. 19327/53. Class 40 (6). A multivibrator comprises a pair of valves which are cross-connected by means of resistorcapacitor networks one of which has a time constant which is very large compared with the other, the resistor of the latter network being connected between the control grid and anode. of its associated valve. Fig. 1 shows a multi. vibrator circuit of the positive bias type comprising valves V1, V2 which are cross-connected between anodes and control grids by means of the networks R1, C1 and R2, C2 respectively. The time constant R1C1 is very much larger than R2C2, negative feed-back is provided between the anode and control grid of valve V2 by resistors RV2, RF2 and of valve V1 by the network C3, C4, D2, the latter limiting the negative-going excursion of the anode voltage of valve V1. If it is assumed that the required output pulse train as shown in Fig. 2 (a) exists at the anode of valve V1 then during a given pulse A of the train, a negative voltage is applied to the control grid of valve V2 and is also fed back to the control grid of valve V1. Valve V2 thus ceases to conduct and-its anode voltage rises rapidly, until held by diode D1, the control grid of valve V1 similarly rises until diode D2 conducts when a further rise is prevented by the negative feed-back to its grid of the negative anode pulse so that the negative going anode excursion is limited. Since the advent of the negative pulse at the grid of valve V2 the grid potential rises with a time constant C2, R2 but modified to rise more quickly due to the simultaneous rise of the anode voltage of valve V2 to which resistor R2 is returned. After a period, valve V2 conducts and V1 is thus out-off until after a period determined by the time constant R1, C1 and the positive supply voltage when the cycle is repeated. The output pulse train is taken from potentiometer PR which may be varied to adjust the amplitude of the output pulses. The pulse width may be varied by adjustment of resistor RV2 and the pulse recurrence frequency by varying resistor R1.
Patent GB-743877-A (GB)
Title: Steroid compounds
IPC: C07J5/00
Filed: 1953-07-13
Abstract: 3-Ketosteroids are chlorinated by contacting a 3-ketosteroid with an organic hypochlorite, e.g. t-butyl hypochlorite, to introduce a chlorine atom in a -position to the keto group.  The reaction may be conducted in the presence of water at a temperature between about -10 DEG  and 50 DEG  C.  As reaction solvent there may be used t-amyl alcohol, chloroform, ethylene dichloride, pentane or hexane. Preferred starting 3-ketosteroids are those having the structural formula: <FORM:0743877/IV(a)/1> wherein R1 is hydrogen, a -hydroxy or an acyl ester thereof, R2 is hydrogen or hydroxy and R3 is acetyl or acyloxyacetyl.  Examples disclose the production of 4-chloro-17(a )-hydroxy-21-formyloxy, acetoxy, propionyloxy, valeryloxy, octanoyloxy, and benzoyloxy-3,11,20-trione, 4-chloro - 17a  - hydroxypregnane - 3,11,20 - trione, 4 - chloro - 17(a ) - hydroxy - 21 - bromopregnane - 3,11,20 - trione, 4,21 - dichloro - 17(a )-hydroxypregnane - 3,11,20 - trione, 4 - chloro-11(a ) - hydroxypregnane - 3,20 - dione, 4-chloropregnane - 3,20 - dione and 2 - chlorocholestenone.  Othe a -chloro steroids mentioned at 4-chloro-11a , 17a -dihydroxypregnane-3,20 - dione; 4 - chlorocoprostan - 3 - one; 4-chloro - 17a  - hydroxy - 21 - bromopregnane-3,20 - dione; 4 - chloro - 21 - acetoxy - 3,11,20-trione; 4 - chloro - 11a  - octanoyloxy - 17a -hydroxy pregnane-3,20-dione 4-chloro-21-bromo - 11a  - acetoxy - 17a  - hydroxypregnane-3,20 - dione; 4,21 - dichloro - 11a , 17a  - dihydroxypregnane - 3,20 - dione; 4 - chloro - 21-acetoxy - 11a , 17a - dihydroxy pregnane-3,20 - dione; 4 - chloro - 11a , 21 - diacetoxy-17a  - hydroxypregnane - 3,20 - dione and 4-chloro - 11a  - formyloxy - 17a  - hydroxy - 21-acetoxypregnane-3,20-dione.
Patent GB-980885-A (GB)
Title: Improvements in or relating to cartons
Inventor: KELLY DOUGLAS ARTHUR JOHN
IPC: B65D5/54
Filed: 1962-05-21
Abstract: 980,885. Cartons. TAYLOWE Ltd. May 21, 1963 [May 21, 1962], No. 19453/62. Heading B8P. A flip-top carton is made from a blank folded to form a tubular shell with rear panel 2 and front and side panels, 1, 3, slit at 13, 14 to form the flip top and has extensions 7, 8 on the lower end of the rear panel 2 bent up to form a base panel and an internal panel respectively which is pushed upwards through the shell to its operative position. To erect the carton the flap 4 is fixed to the glued portion 5 of the rear panel forming the tubular shell, flaps 16 are folded across one end of the shell, and side wings 10 are folded against the panel 8 which is then passed upwards through the shell until the base panel 7 is in position, this operation being facilitated by transverse crease lines such as 9. The side wings 10 are then opened out to lie against the side panels 3, and the top is closed by flaps 11, 12.